CVE-2026-93110

RDMA/core: Wait for RCU callbacks before unloading ib_core

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 19, 2026
Reserved: Sep 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/core: Wait for RCU callbacks before unloading ib_core

put_gid_ndev() is queued with call_rcu() and implemented in ib_core. Stopping the workqueues does not drain callbacks already queued, so RCU could invoke it after the module code has been unloaded.

synchronize_rcu() does not wait for callbacks. Wait for them after all producers have stopped.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	943bd984b108b3bb778790c2da4ae8d186b547e6 to before 82dfd1df456227279b1c8c648983a530f2612098Affected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 1646e123e56c3ad679fbfb571e8eef6386efb729Affected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 8e4f1677c09d75d738099f42afcf65d8587b664aAffected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 7853af5f15738dc00aebaa1fc9f1f0df40f6f603Affected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 0d5817fa4819abdc445fa77b5be4f0d49334a864Affected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 9d998297fdaf47492f6679287f6552879d1a7e3aAffected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 48b72fa0d209a92fb51b834a6080171cfa207b2cAffected 943bd984b108b3bb778790c2da4ae8d186b547e6 to before 7d75592114d1664623c8cf191a12b38052c04483Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

943bd984b108b3bb778790c2da4ae8d186b547e6 to before 82dfd1df456227279b1c8c648983a530f2612098Affected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 1646e123e56c3ad679fbfb571e8eef6386efb729Affected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 8e4f1677c09d75d738099f42afcf65d8587b664aAffected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 7853af5f15738dc00aebaa1fc9f1f0df40f6f603Affected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 0d5817fa4819abdc445fa77b5be4f0d49334a864Affected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 9d998297fdaf47492f6679287f6552879d1a7e3aAffected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 48b72fa0d209a92fb51b834a6080171cfa207b2cAffected
943bd984b108b3bb778790c2da4ae8d186b547e6 to before 7d75592114d1664623c8cf191a12b38052c04483Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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